Suriname weather by month

In Paramaribo, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around July 16 and lasts for 4.1 months, ending around November 18. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 74% of the time on average.

The cloudier part of the year begins around November 19 and lasts for 7.9 months, ending around July 15. The cloudiest month is May, when it is overcast or mostly cloudy 80% of the time.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Paramaribo is typically calm, near 11 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.4 months, from around Dec 1 to May 14. The windiest month is March, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around May 15 to Oct 11, with July the calmest month at about 8 km/h.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Paramaribo receives about 5.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.7 and 6.4 kWh/m².

The brighter stretch of the year lasts 4.1 months, from around Jul 18 to Nov 18. The brightest month is September, averaging about 6.4 kWh/m² (intense).

The dimmest month is May, down near 4.9 kWh/m² — roughly 24% less than the September peak.